<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>space and vertical-align (reference)</title>
</head>
<body>
  <p>Test passes if you see a green square.</p>
  <div style="position: relative;">
    <div style="position: absolute; top: 0px; left: 0px;
                background: green; width: 100px; height: 100px;">
    </div>
  </div>
</body>
</html>
